727641 has 6 divisors (see below), whose sum is σ = 1051050. Its totient is φ = 485088.

The previous prime is 727633. The next prime is 727667. The reversal of 727641 is 146727.

727641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 81225 = 804^2 + 285^2 .

It is not a de Polignac number, because 727641 - 2³ = 727633 is a prime.

It is a super-2 number, since 2×727641² = 1058922849762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (727621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40416 + ... + 40433.

It is an arithmetic number, because the mean of its divisors is an integer number (175175).

2⁷²⁷⁶⁴¹ is an apocalyptic number.

It is an amenable number.

727641 is a deficient number, since it is larger than the sum of its proper divisors (323409).

727641 is a wasteful number, since it uses less digits than its factorization.

727641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80855 (or 80852 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 727641 is about 853.0187571209. The cubic root of 727641 is about 89.9440392857.

The spelling of 727641 in words is "seven hundred twenty-seven thousand, six hundred forty-one".